of americans say defending the united states from terrorist attacks should be a top priority for the obama administration. the issue of national security has been a top priority for at least 70 percent of americans since the poll has been taken which started in 2002. >> the i.r.s. says boston area taxpayers will get an extension on filing their federal tax returns. taxes were due today in massachusetts because yesterday was a state holiday for them. >> google is praised for its action in the minutes after the bombings, the internet giant created a link called "person finder" where you enter names and contact information about runners and people along the racecourse for the public to view so you can get information and give information. the service came in handy because cell phone service because nonexistent for several hours after the explosion. >> you can show your support for the people of boston through a badge posting on your facebook that reads "our hearts go to everyone in boston and each person with loved ones running in the marathon." >> breaking news from the south bay where a hou